Note: Descriptions are shown in the official language in which they were submitted.
~299259
~SODULAR HIGII FnE~U~NCY PO~JER TR~SFOR~SER
1 TECHNIC~ PIE~
2 The present lnventlon r~1nten geno~n11y to powor
3 tr~nsformors ond more p~rtlcul~rly to mlnlntur~, hl~h
4 frequency, modulnr power tran~former~.
6 B~C~GI~UND MT
7 Conventlon~1 hlgh frequency power tr~nsformer~ th~t
8 requlre hlgh voltnge l~olatlon between prîm~ry ~nd
9 secondary wlndlngs nre u~unlly mnnufnctured a~ an lntegr~l
nssemb1y thnt requlre~ 1Dbor lnten~lve wlndlng of the
11 pr~m~ry nnd secondnry wlndlngs, leAdlng to hlgh co~ts.
12 Convent,ona1 devlce~ furthor requlre pottlng or sp~clal
13 coatlng for the transformer to meet standard lndustry
14 dlel~ctrlc wlth~t~nd ~pQclflcAtlon~, ~uch a~ U.L. 1244,
~Nsr C39.5 or IEC 34~.
16 Thera~ore, lt l~ nn ob~ect of the present lnventlon
17 to provldn A mlnlnturo hlgh fr~qusncy power trnn~former
18 thnt l~ comp~ct nnd lnexpen~lvo to m~nufaoture. It l~ ~
19 further ob~ect of the lnventlon to provlde ~ mlnlnture
hlgh frequency powor trnn~formQr thnt exhlblt~ good
21 magnetlc coup1lng nnd hlgh vo1tnge l~olntlon to meet
22 stnndard lndu~try dle1ectrlc wlth~tand speclflcatlon~.
23 Anotller ob~ect of 1D to provlde a mlnlnture hlgh frequency
24 power tr~nsformer thnt utl1l~en modulnr component~.
26 DIS~LOSU~ ~F T;;E INVEN~ION
27 The nbo~e nnd other ob~ects of the present
28 inventlon nre ~atlsfled by m~tlng outer and lnner modular
29 trnnsfor~er bobbln~ c~rrylng r~pectlvely th~ prlmary nnd
~econdary wlndlng~ of n trnn~former. The outer modu1nr
31 trnn~former bobbln hn8 a prlmnry ~hnnk portlon w~th ~
32 plurallty of f1nnges formed thereon, estab1lshlng an area
33 for recelvlng prlmary wlndlngs of the trnnsformer. The
34 prlmary shnnk portlon hns n flrst ~pertùre formed
therethrough. ~ end w~11 of thn flrst npertùre h~s a
36 protru3lon extendlng therefrom a~lnlly through the
~k,
1299;~5~
1 ~porturo th~t t~rmlnnt~n nt ono end o~ the tr~nsformor at
2 flrnt core retnlnlng ~nr~. Second cor~ rotAlnlng enrs
3 ~tend ~ lly from tl~o oppo~ltr end of tile tr~nsformer.
4 The secondnry sh~nk of the lnner modulnr
tran~former bobbln 19 sllghtly Dm~ller ln dl~meter th~n
6 the ui~meter of the ~lrst ~perture formed ln the prlm~ry
7 ~h~nk, nnd hn3 ~n ~r~n form~d thereon to recelve ~econdnry
8 wlndSng~ of the tr~n3~0rmer. The second~ry shAnk furthnr
9 hn~ a ~econd ~perture extendlng ~lally therethrough th~t
18 ~llghtly larger ln dl~meter th~n the dlameter of the
11 fLr~t protruslon formed ln the prlmnry sh~nk.
12 The ~econd~ry ~hank 1~ ln~erted ~nto the flr~t
13 aperture formed ln the outer bobbln, wlth the flr~t
14 protru310n extendlng from the prlmDry ~hank lnserted lnto
the second Dporture formed in the ~econdary ~hank huch
16 thAt the Necond~ry wlndlng~ on the ~econdary ~hank ~re
17 wlthln the prlmary wlndlngs formed on the prlmary sh~nk.
1~ ~ hlghly permenble tr~n~ormer core 18 ~upported
19 wlthln the flrst and second core retolnlng e~r~ ~nd
surroundn the lnner nrld outer modulnr trAn~form~r bobb~ns.
21 ~he modul~r de~lgn o the mlnl~ture hlgh frequency
22 power tr~n~former mlnlmlr.es ~embly errors that m~y
23 comproml~e protectlve dlelectrlc ~p~clngn necesc~ry to
24 meet lndu~try ~fety ~t~nd~rd~.
Furthermore, formlng the wlndlngs on the lnner ~nd
26 outer modul~r tran~former bobblns c~n be c~rrled out ln
27 ~dv~nce by Autom~ted squlpment further mlnlmlzlng humDn
28 error ~nd reduclng co~t~. No trAn~former pottlng or
29 ~peclnl coatlng 1~ requlred ln the ~ssembly of the
present lnventlon.
31 Stlll other ob~ects nnd ~dvAnt~ge~ of the present
32 in~entlon wlll ~ecome re~dlly ~pparent to those skllled ln
33 thl~ nrt from the followlng det~lled descrlptlon, whereln
34 only the preferred embodlment of the lnventlon 18 9hown
~nd de~crlbed, ~lmply by ~ay o~ lllustratlon of th~ best
36 mode contemplnted of cnrrylng out the lnventlon. A~ wlll
37 be renllzed, the lnventlon 18 c~pable of other and
3~ dlfferent embodlments, nnd lt~ several detalls ~re c~p~ble
1299259
1 o~ modlflcDtlon ln v~rlous obvlou~ r~pect3, ~11 wlthout
2 d~phrtlng ~rom the lnv~ntlon. ~ccordlngly, thQ dr~wlng ~nd
3 de~crlptlon Ar~ to bo reg~rd~d ~ lllu~tr~tlve ln nAturo,
4 nnd not a~ re3trlctlv~.
6 ~RIE;F VESCRI PTI(;lN OF TIIE DllAWIN~S
7 FIG. 1 1~ a per~pectl~ vlew oE ~n ~sembled
~ transformQr ln accordnnce wlth an embodlment of the
9 present lnventlon
FIG. 2 13 an exploded vlew of a tran~formar of ~IG.
11 1, showlng lnner and outer modular tran~former bobblns and
12 corre~pondlng ferrlte core ha1ves; and
13 ~IG. 3 l~ nn enlarged ~ro~s sectlonnl ~lde vlew of
14 the lnner and outer modul~r tran~ormer bobbln~ before
~semb1y.
16
17 .EleS~ ~5C)DE FVI( ~N~RYINÇ; ~UT TIle INVENTION
1~ Referrlng to FIG~ 3, n mlnlaturn hlgh frequency
19 power tran~form~r 100, ln ~ccord~nce wlth ~ preferred
embodlment o the lnventlon, comprls~ ~n outer modular
21 transformer bobbln 200 hnvlng prlmnry wlndlng~ 218 formed
22 thereon, an lnner mo~u1ar trDn~former bobbln 202 havlng
23 second~ry wlndlng~ 220 th~reon nnd flrnt nnd second
24 ferrlte cor~ halve~ 102 nn~ 103 ~urroun~lng both bobblns.
The outer modul~r trnn~onner bobbln 200 further h~s n
26 prlm~ry nhank portlon 230 wlth A flrnt flange 302 nt one
27 end of the ~hank, a ~econd flange 226 centflred on the
2~ ~h~n~, and a thlrd flange 22~ on the oppo~lte end. The two
29 bobblna 200, 202 nrQ preerably formed of ~ p1astlc
m~terlal.
31 The flr~t f1ange 302 ha~ flrst trannformer core
32 retalnlng ear~ 304 (FIG. 3) formed thereon thnt extend
33 a~lal1y from one end of tran~former ace 320. Second
34 flanqe 226, formed mfdway between f1anges 302 and 22~ on
~hank 230, create~ ao area 315 that recelve~ the prlmary
36 wlndlngs 218. Thlrd fl~nge 224 18 formed on tha shank 230
37 wlth an ~perture 20~ thereln thnt l~ deflned by wa11 208n
38 (~IG. 2). ~ protru~lon 205 extend~ from an end wa11 302a
: i~99259 .
1 on fl~ngo ~02 nxl~lly tllr~ugh ~pertur~ 20e, to form socond
2 core r~ln~ng ~rn 204 ~t th~ oppo~lte end of the
3 trnn~form~r. Inner mo~ul~r trAn~Eormer bobbln 202 h~s n
4 ~condary ~11ank portlon 214 tll~t receLv~ second~ry
wlndlngn 220 (~t nn ~r~n 316. Flrnt m~tlng flange 212 l~
6 formnd on no~ondnry n~lnnk 214 wlth ~p~rtur~ 206 thereln.
7 It shoul~ b~ noted from FIG. 3 th~t ~perture 206
8 has tlle ~nme nh~pe nnd l~ sll~htly l~rger ln dl~meter than
9 the dlnmeter of protruslon 205. A ~econdnry retnlnlng w~11
210~ ~ formed on ~econd~ry ~hank 214 by a flnnge 202
11 hnvlng ~econ~ry llp~ 210b thereon. Th~ second~ry 1lp~
12 210b (See FIG. 2) h~vc the ~m~ ln31de dlmen~lons ns thlrd
13 flnnge 224 on the outer transformer bobbln 200.
14 Apertllre 206 o~ wall 210a has a dlameter s11gSIt1y
1Arger thnn the dlnmQter of protru~lon 205. ~oth the outer
16 modul~r tr~n~formcr bobbln 200 ~nd the lnner tr~nsfo~mer
17 bobb~n 102 hnve ele~trlc~lly conductlve mountlng pln~
18 thnreon th~t ~re c~p~ble o mountlng ~nd e1ectrlc~11y
19 lnterconnectlng the mlnl~ture hlgh froquency tr~n~former
100 to n clrcult bo~r~ (not ~hown).
21 ~E~ ~h~ped errlto core h~lve~ 102 and 103 ~FIG.
22 2) are ldentlc~l to e~ch other ~nd provlde ~ hlghly
23 eff~clent flux path between the prlmnry wlndlngs 210 ~nd
24 secondDry windlngs 220. Ferrlte core halve~ 102 and 103
further act to malnt~ln outer tr~n~former bobbln 2U0 and
26 lnner trDnsformer bobbln 202 ~n~emb1ed together to form
27 the mlnl~ture hlgh frequency tr~n~former 100 n~
28 hereln~ter de~crlbed.
29 In the as~emb1y of the preferred embodlment o the
lnventlon ~llown ln FIG. 1, refQrrlng additlonally to the
31 enl~rged vlew of the lnner nnd outer modulnr tran~former
32 bobblns 200 ~nd 202 ~hown ln ~IG. 3, bobbln~ 200 ~nd 202
33 ~re p~tlon~d such tllat flr~t matlng fl~nge 212 on lnner
34 modul~r bobbln 202 f~cQs thlrd flnnge 224 on outer modul~r
tr~nsformer bobbln 200. Protru3lon 205 on bobbln 200 1~
36 thon allgncd wlth npcrture 206 on bobbln 202, and flr8t
37 matlng flange 212 18 ln3erted lnto aperture 208 on bobbln
38 200 ~uch that ~hank 214 lnterflts wlth ~pertur0 20a.
1~99259
1 Protru~lon 2~5 ln moved n~lhlly thro~gh ~perturo 206 untll
2 flr~t m~tlng fl~nge 212 come0 lnto contoct wlth prlm~ry
3 ret~inlng wDll 3~2~; llkewls~ ~hlrd flMnge 224 i~ Ad~acent
4 secondary ret~lnlng wall 210n nnd llp~ 210b. Flrst core
rstolnlnq e~r~ 304 (FIG. 3) extend from prlmary f~ce 32~
6 ond ~econd core ret~lnlng enr3 204 extend from secondary
7 fnce 330.
8 Center por~lon 1~2n o 1rst core h~lf 102 (FIG.
9 1) la next lnnerted lnto ~portur~ 20~ nt prlmnry f~ce 32~
untll flrst core hnlf 102 la retnlned by flr~t core
11 retnlnlng ears 304. Slmllnrly center portlon 103a of
12 second core hnlf 103 ln lnserted lnto operture 206 at
13 s~condAry face 330 of lnnnr tr~n~former bobbln 202 untll
14 core h~lf 103 18 retolned by second core r~t~lnlng eors
204 nnd cor~ face~ 102a nnd 103n on the ~lr3t and ~econd
16 ferrlte core hnlvca rsapectlvely nre f~ce to fnce to bo
17 bonded togQther to form the nssembly of FIG 1.
1~ It shouId bn underntood thnt when mln~nture hlgh
19 requency transformer 100 18 thus nssembled secondary
wlndlngs 220 nre cont~lned wlth~ln prlmnry wlndlngs 218
21 forme~ on outer modulnr tronsform~r bobbln 200 nnd both
22 prlmn-y wlndlngs 21~ nnd secondDry wlndlng~ 22~ are
23 nurroullded by flrnt nnd aecond ferrlto core halve~ 102 ~nd
24 103 (See FI~. 1). Of courso tho posltlons of the prlmnry
Dnd ~econdnry wlndlng~ cnn be lnterchanged. Thls close
26 flttlng r~loBlonahlp botween tlle wlndlngs nnd the core
27 h~l~es mnxlmlzes coupllng of tho wlndlngD to the h-ghly
28 permenble ferrlte core nnd mlnlmlzes flu~ leA~age. Once
29 nsDem~led flrst Dnd second ferr'te core hnl~e~ 102 nnd
3~ 103 nre bonde~ together by nny ~ultable bondlng ngent (not
31 ~hown) npplled to flrst ond ~econd cor~ fnce~ 102~ nnd
32 103a.
33 There has accordlnqly been descrlbed a mlnlature
34 hlgh frequency power tran~former whersln msgn~tlc coupllng
1~ m~xlmlzed by the utlllzatlon of low c08t and enslly
36 As~embled modular tran~former bobbln~. MGdulffr ~ssembly
37 Dnd clo~e manu~cturlng tolernnce~ meet or exceed lndustry
~299259
1 n~fety ~t~ndnrd~ for hlgh voltnge lnolntlon or hl~h
2 requnncy power trnnn~orm~r~.
3 In thl~ dl~clo~ure, there 18 shown ~nd descrlbed
4 only the preerred embodlment of the lnventlon, but, lt 1~
to be under~tood th~t the Inventlon ln c~pnbln of use ln
6 v~rlou~ other combln~tlon~ ~nd envlronments Dnd 18 c~pnble
7 of chnnges or modlflcntlons wlthln the scope of the
a lnYentlve concept n8 axpressed hereln.
